Device for cutting and scoring paper-box blanks.



M. P. DAVEN.

DEVICE POR GUTTING AND SGORING PAPER BOX BLANKS. APPLIOATIN PILED JULY 27, 1911.

1,027,822. Patented May 28, 1912.

2 SHEETB-SHEET 1.

M. P. DAVEN. DEVICE POR C UTTING AND SGORING PAPER BOX BLANKS.

APPLIOATION I'ILED JULY 27, 1911. 1,027.,822. 4 Patented May 28, 1912.

2 SHEETS-SEEET 2.

UNITED sTATEs PATENT OFFICE. i

MICHAEL P. DAVEN, OF ST. LOUIS, MISSOURI, ASSIGNOR OF 0NE-TIRD TO JOSEPH SCHULTZ AND ONE-THIRD TO CHARLES H. FESENFELDT, BOTH OF SI'. LOUIS, MIS- SOURI.

DEVICE FOR CUTTING AND SCORING ?AFER-BOX BLANKS.

'Patented May 28,1912. Serial No. 640,'784.

To all whom it may cancer-n:

Be it known that I, MICHAEL P. DAVEN, a citizen of the United States residin at the city of St. Louis, State of Missouri, have invented certain new and useful In'provements in Devices for Cutting and Scoring Paper- Box Blanks, of which the following is a specification.

This nvention relates to certain new and useful improvements in devices for cutting and scoring paper box blanks, and the object of the invention is to provide improved means for simultaneously cutting and scoring the paper according to the .particular form which the completed box is to assume.

A further object of the invention is to provide a device of the character described in which the cutting and scoring mechanism may'be adjusted and altered, so as to vary the cuts and scored portions of the paper to thereby enable the completed boxes to have different shapes and dimensions.

In the drawings: Figur-e l is a side elevation of the device, Fig. 2 is a section taken on line :2-9 of Fig. 1, Fig. 3 is a section taken on the line 3-3 of Fig. 1, Fig. 4 is a,

section taken on the line 4-1 of Fig. 2, Fig. 5 is a section taken on the line 5-5 of Fig. '2. Fig. 6 is a plan View of the scored and cut. paper, and Fig. 7 is a perspective view of one of the cutting or shearing blades.

The device comprises a frame which includes a base 1 and standards 2 at the ends thei-cof, the latter having stationary bearings 3 at their lower ends in which a lower shatt 4 is journalcd. The upper ends of the standards 2 are provided with movable bearings 5, in which an upper shaft 6 is journaled. The movable bearings 5 have a vertical sliding movement, and same are normally forced downvardly by coil springs 7, which are mounted in slots 8, formed in the upper euds of the standards 2, the coil springs being Secured in position by engagenent ot' their ends over studs 9 and 10 car- -ied by the movable bearings 5 and the standards 2, rcspectively. One end of the lower shaft 4 has a gear 11 rigidly Secured thereto. which gear meshes with a similar gear 12, that is rigidly sccured to the upper slaft 6. The lower shaft- 4 1S driven froni in Fig. 2 of the drawings, formed With cutout portions 14. A set or a plurality of sets of cutting and` scoring wheels 15 are employed, each set comprising an upper wheel rigidly mounted on the shaft 6, and a lower wheel rigidly mounted on the lower shaft 4:. The wheels 15 are formed with circumferential flanges 16, located on opposite sides of the wheels in spaced relation to each other. The fianges of the lower wheels project in the cut-out portions 14 of the table 13, when the whecls are ro't-ated. Each wheel 15 has a segment-al cutt-ing or shearing blade 17 or a plurality of such blades fastened in the space between its flanges 16 by set-screws 18, or other suitable means, the arcual cutting or sheari'ng edges of the blades projecting beyond the peripheries of the flanges 16, as illustrated.

In the drawings each wheel 15 is shown as having two blades 17 attached thereto, so that on each revolution of the wheel, the blades produce two cuts in the paper, which latter is supported on the table 13 and is fed manually or by mechanical means (not. shown) between the upper and lower Wheels. The wheels are provided with hubs or collars 19 which are received by the shafts and are equipped with set-screws 20, by means of which the wheels, when the set-screws engage with the shafts, are rigidly held there on and may be, When the set-screws are unloosened, removed from the shafts, or adjusted therealong. or removable engagement of the wheels 15 on the shafts, the wheels may be detached or removed and replaced by smaller or larger wheels when necessary or desirable. By the employment of set-screws 18 to secure the cutting or shearing blades to the Wheels,'said blades can be removed and replaced by blades having arcual edges of greater or less degree or extent in order to make shorter or longer outs in the paper, as is obvious. The cutting blades 17 have a shearing action, and when the face of the blade of a wheel of a set' becomes worn so that itdoes not travel in effective shearing engagement with the other wheel of the same set, one of the wheels can be shifted by unloosening set-screw 20 on its slaft to cause the coperating faces of the blades of the two wheels to come into contact to produce a perfect shearing action.

By referring to Fig. 2 of the drawings it will be seen that the blades 17 are each formed with a front cutting edge 17', which edges simultaneously enter or penetrate the paper and thereby begn the shearing or cutting of the paper while the paper itself is fed forward, due to the friction of the flanges 16 of the rotating wheels 15 thereon;

ing edges of the blades 21 are of substantially`V-shape in cross-section, so that the scoring edge is somewhat sharp, as shown in Fig. 5. The lower wheels of the sets are provided with arcual plates or members 23, which are secured to and in the spaces between the fianges of said wheels by means of set-screws 24, the plates 23 having flat peripheral surfaces, as illustrated in Fig. 4 of the drawings. When paper is passed between the upper and lower wheels, it will be seen that the'scoring edges of the blades 21 will press the paper against the flat surfaces of the blades 23 and thereby score the same. The blades 21 and the plates 23 can be replaced by longer or shorter ones, when it is desired to make a longer or shorter score;

As is clearly obvious from Fig. 3 of the drawings, the teeth of the gears 11 and 12 are of such depth that same remain in mesh when the shaft 6 is moved away from the shaft 4 during the scoring operation.

In Fig. 6 of the drawings, C designate the cuts which are formed in the opposite ends of the paper P, and S, the scorings which are fol-med in the paper between the inner ends of the cuts C. By adjusting the sets of wheels on the shafts, the spaces between the cuts and scored portions may be increased or decreased or otherwise changed in an obvious manner to conform to different requirements, and by attaching additional blades to the wheels, any desired or necessary number of cuts may be made in the paper to each revolution of the wheels.

It will therefore be seen that the number and arrangement of the cutting and scoring blades and plates may be changed or altered i to produce varying combinations of cuts and scored portions inthe paper, in an obvious manner, Fig. 6 of the drawings indicating one example thereof.

As depicted in Fig. 7 of the drawings the cutting blades 17 are provided with ribs or flanges 24' which engage with one of the flanges 16 of the wheel 15 to which the cutface of the cutting blade will be located in substantially the center of the space between the fianges 16, as shown in Fig. 1 of the drawings, in which it will be noted that the cutter blade of a lower wheel of a set of wheels is located on the side of that wheel opposite to the side on which the cuttter blade of the upper wheel of that set is secured. It should be understood that the scoring surface of each wheel may consist of a plurality of scoring blades 21 of dif: ferent lengths, so that same can be readly adjusted to the proper length, either by the removal or the nsertion of one or more of such blades. By using wheels of different size to make blanks for the maximum size of boxes, same can be readily used for making blanks for smaller boxes byattaching the proper sizes of shearing blades 17 and scoring blades 21 to the wheels 15, as hereinabove described.

One great advantage arising from the use of the device of this invention resides in the fact that only one machine is utilized for the purpose of cutting and' scoring the blanks, whereas,'heretofore, it has been customary to use a plurality of machines to ac- `complish the same result.

What is claimed is:

1. A device for simultaneously cutting' ward and away from the other shaft, springs for normally forcing the first named shaft toward the second named shaft, a series of wheels on each shaft, circumferential spaced flanges carried by each wheel, the wheels of .one shaft being in Aengagement with the wheels of ,the other shaft, arcual cutting blades having front cutting' edges mounted in the space between the flanges of each wheel, the blades of opposed wheels having confronting shearing edges which engage one another, an arcual scoring blade having a sharp edge secured in the space between the-flange of the wheels of one shaft, and an arcual plate having a flat peripheral surface secured in the space between the fiange of the wheels of the other shaft.

2. In a device of the class specified, the

combination, of a pair of opposed rotatable elements provided with confronting circumferential grooves, a pair of longitudinally spaced cutting blades mounted in the groove in each of said elements, the blades of each element coperating with those of the other element, and coperating scori plates 4 mounted in the grooves of said element in the spaces between the cutting blades there# in and in line with the latter, the scoring plate of one element having a sharpened peripheral edge and the scoring plate of the other element having a flat peripheral edge against which the edge of the first-named In testimony whereof I hereunto afiix my plate presses the material to be acted upon, signature in the presence of two witnesses. said cperat-ng blades and plates producing a single straight line in said material' MICHAEL DAV 5 vhich is partly cut and partly seored, the Witnesses:

-scored part of such line being located be- JOSEPH SCHULTZ,

tween the cut end parts thereof. CHAS. H.- FESENFELDT. 

